383664666000 has 640 divisors, whose sum is σ = 1575053475840. Its totient is φ = 78021888000.

The previous prime is 383664665981. The next prime is 383664666013. The reversal of 383664666000 is 666466383.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 21705166 + ... + 21722834.

It is an arithmetic number, because the mean of its divisors is an integer number (2461021056).

Almost surely, 2^383664666000 is an apocalyptic number.

383664666000 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 383664666000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (787526737920).

383664666000 is an abundant number, since it is smaller than the sum of its proper divisors (1191388809840).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

383664666000 is a wasteful number, since it uses less digits than its factorization.

383664666000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17760 (or 17744 counting only the distinct ones).

The product of its (nonzero) digits is 2239488, while the sum is 48.

The spelling of 383664666000 in words is "three hundred eighty-three billion, six hundred sixty-four million, six hundred sixty-six thousand".